My intention with this thread is to create some kind of small database over how to perform some basic modding. Preferably there would be a subforum for modding. But for now I will post all my tutorials in this thread. Feel free to comment with your own and I will add them to the OP.

To add new card graphics do the following; First create a new texture in "Art\Cards\Content\", Then go to "Prefabs\CardBakeObject" and look for the array named "Content_Textures" and add a new element. Then simply add the new number to the card in "Text_Data\cards.txt"

To add new decks, coins, tokens or dices; create a new empty scene and drag the prefab "board" onto the scene. This will allow you to modify what is spawned on the table at the start.(Remember to properly name the deck if you are making a new deck-type) - Thanks to vrav for help on this.

I am a Unity enthusiast for a long time, and already started modding the game. I have also got to the same conclusion OP did. I am currently making a D&D 3.5 table, with customizable combat area and new dices, also monsters and player tokens. This is only to help online playing, you will need another software for the sheets and voice chat.

Will any older versions of Unity Pro work? I have 3.4 from a class I took, not tried to import the project in yet, still prototyping the changes I want to make. Also would be a very good idea to try and change whatever object(s) it is that bind it to Pro, as that will greatly hinder the modding community.

I was also wondering if we could get a more indepth guide, i have never used unity and I am trying to make a total conversion, however i have no idea how to add new assets, or even recompile this into game once I do